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【单选题】
外心脏按压深度与频率为:( )A.
1-2 厘米， 100 — 120 次／分
B.
3 － 4 厘米， 100 － 120 次／分
C.
5-6 厘米， 100 — 120 ／分
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皮皮学刷刷变学霸
举一反三
【单选题】If corn farmers know that the demand for corn is inelastic, and they want to increase their total revenue, they should all
A.
a. plant more corn so that they would be able to sell more each year.
B.
b. increase spending on fertilizer in an attempt to produce more corn on the acres they farm.
C.
c. reduce the number of acres they plant in corn.
D.
d. contribute to a fund that promotes technological advances in corn production.
【单选题】大众帕萨特电动车窗系统控制电路当驾驶人员按下左前电动车窗开关E40至第一格时,( )。
A.
驾驶侧车窗手动上升或下降
B.
驾驶侧车窗自动上升或下降
C.
左后车窗上升或下降
D.
右后车窗上升或下降
【单选题】汉译英：“到岸重量；延期交货；运费”，正确的翻译为（ ）。
A.
1ading weight；delivery late；transport Charge
B.
1ading weight；late delivery；freight Charge
C.
shipment weight；late delivery；transport Charge
D.
shipment weight；delivery late；freight Charge
【单选题】In 2012, Canadian farmers did not suffer from drought conditions that affected the United States, but they did enjoy the higher corn prices. Canadian farmers reacted to the higher price by planting mo...
A.
perfectly inelastic.
B.
unit elastic.
C.
elastic.
D.
inelastic.
【单选题】Suppose that when the price of corn is $2 per bushel, farmers can sell 10 million bushels. When the price of corn is $3 per bushel, farmers can sell 8 million bushels. Which of the following statement...
A.
The demand for corn is price elastic, and so an increase in the price of corn will increase the total revenue of corn farmers
B.
The demand for corn is price inelastic, and so an increase in the price of corn will increase the total revenue of corn farmers
C.
The demand for corn is income elastic, and so an increase in the price of corn will increase the total revenue of corn farmers
D.
The demand for corn is income inelastic, and so an increase in the price of corn will increase the total revenue of corn farmers
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